Apparatus for transfer of heat



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' E. G, JAY

' APPARATUS FOR-TRANSFER OF HEAT Filed oct. 12,'1955 May 17, 1938. E. G. JAY

APPARATUS FOR 4TRANSFER OF 'HEAT Filed oct. 12, 19:55

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l APPARATUS Fon TRANSFER oF HEAT Filed oct. 12, 1955 A 3 `sheets-sheet 3 Mrz@ Y' 5 perature is provided quickly and emciently by Fig. 4 is a cross-sectional view on an enlarged patented May4 11, 193s i l 2,117,961

UNITED STATES'QPATENT OFFICE- A 2,111,961 APPARATUS Fon. TRANSFER for HEAT Edward G. Jay, Mansfield, Mass.

. Application October 12, 1935, Serial No. 44,704

8 Claims. (Cl. 62-114) My present invention is a novel and improved ratus showing the' freezing frame in position,

apparatus for transfer of heat and, more paron the line 2-2 of Fig. 1; ticularly, lis directed to heat exchange in a re- Fig. 3 is a vertical cross-sectional view on a frigerating apparatus wherein transfer of temfurther enlarged scale;

conduction. -scale onl the line 4-4 of Fig. 2 with the apparatus Preferably I carry out my invention by proin inoperative position: l viding a suitable refrigerating .receptacle with Fig. 5 iS a Corresponding View With the appaoppositely 'positioned hollow members arranged ratlls in Operative position, and With the flexible to receive the article or articles to be treated plate in eOntaCt with the'artieles being treated; 10 therebetween. The opening between the cooper- Fig. 6 is a cross-sectional view on the line 6 6 ating refrigerating members is. preferably, norof Fig. 4; mally wider than the thickness of the articles to Fig. 7 is a diagrammatic vView illustrating be treated or the container holding the same, and plurality 0f units, and i5 either one or both of the walls of the refriger- Fie. 8 is a view in perspective of a suitable i5 f atingmeans between which the artiolesrte be freezing frame to contain the larticles being treated are fitted, is in the form'of a flexible plate, treated. fabric, or member. Thereupon, a refrigerating It will be appreciated that in carrying out my substance, s'uch for example as brine, gas, or the invention I may utilize anyv desired 0r Standard 2o like is circulated thru the members under suilitype. form, size, or capacity of apparatus to Sup- 20 40 By my utilization of a exible contact' mem- Ved 0n' a base 6.

cient head or pressure to distort the plate or -ply either heat 0r cold thru the unit by the eirplates, 4thus giving -a firm contact between the culation of a liquid or a gaseous element,' and wall or walls of the refrlg'erating members and either closely adjacent the unit or at a relatively articles to be treated, thereby 'effecting a highly remote distance therefrom.

efficient exchange of heat by conduction between In the typical embodiment illustrated herein, I- 25 the articles and cooperating refrigerating memhave shown the unit for heat exchange, with the bers. 'I' products to be treated, as conveniently positioned A plurality of such pairs 0f members' maybe on a room or floor such as of a house, or factory arranged either in the same or adjacent appao and with the condenser, compressor, and circuratus, and either with the same or separate cirlating and operating means therefor positioned 30 culating systems, and either with the same or at a relatively remote point, such as in the-space different spacings and capacity between the memunderneath the IOOm inWhich 'the Unit iS inbers to hold and contain similar or different stalled. Also, I have herein illustrated a typical sized articles. Also, my receptacle and the flexand Standard type 0f refrigerating apparatus ible contact plates or members may be arranged Comprising an ammonia compresser l.' Operated 35 horizontally or vertically with equal emciency and by mechanism in an adjacent easing 2, thru of practically any size and capacity which may which a shaft 3 mounted in suitable bearings I be commercially needful `for the product to be receives rotation by a`pul1ey 5 belted to any suittreated, i 'able source of power, and the apparatus mount- 40 ber, or members, between the product 'to be treat- A condenser lll'of the usual shell and tube ,ed and the receptacle in which the treatmentv is type iS suitably associated With the COmpIeSSOr effected,Ieliminate all mechanically moving parts II and co nected therewith and to a manifold inthe apparatus and4 thereby greatly simplify the l2 thru p pes I3' and i4, respectively: Associated.

construction and, furthermore, effect a quick and With the manifold l2 is a hand Vexpansion valve 45.

vrapid transfer ofheat by conduction from the i5. an automatic lioat valve I6 and inlet and product-, being treated'in the receptacle 0r,v eenoutlet valves from the manifold l2 thereto, as versely, from the receptacle to the product. indicated at 'il and i3 respeetivelm'a drain valve Referring to the drawings, illustrating a prei9 and a Charging Valve 20 and Charging connecl ferred' embodiment of my invention, tion 2|., yall of usual standard construction. A 5o Fig.' 1 illustrates in' diagrammatic form, partly suitable brine cooler of appropriate capacity 25 in cross section, an apparatus vfor transfer of is connected withthe. manifold I2 thru the pipe heat carrying out my present invention; 26, here shown in dotted lines, and preferably xin- Fig'. 2 is an enlarged cross-sectional view on a Siliated in a Covering 21.. the liquid refrigerant 'horizontal plane -thru the refrigerating appalow/ thereto being 'in the directionl of the arrow '55 29 thru the cooler 25 and back to the compressor I, thru the conduit 29 in the direction of the arrows 38. This completes a standard form of ammonia cooling. system.

I provide a liquid brine cooling system which will run thru coils in a cooler 25. As herein shown, I utilize a brine circulating system as the immediate heat exchange element for operating the unit. For this purpose I provide a suitable arrangement of piping 43 spaced in relation to the receptacle 44 to be hereinafter described, which piping is arranged to provide a hydrostatic head on 82 above the receptacle, and is further provided with\a vent or air relief -chamber 43, the

lower portion of which provides a connection to al brine reservoir 4|, into which the circulating brine overflows. Suitable insulation is indicated for all of this piping arrangement as at 48. The

' brine reservoir and brine circulating system is filled thru a plugged extension 'lling connection 42.

When the system is at rest,the brine for circulating thruthe' system would be at a level with the illler 42, as indicated on the dotted lines 48, and when in circulating operation the level in the reservoir 4| would be substantially as shown bythe line 41. A pump 58 for circulation of the brine is provided with a conduit from the reservoir 4|, the current flow leading in the direction of the arrows 5| thru the conduit 52 enclosed in insulating material 53 and in the drain outlet 54 at appropriate position. A suitably driven centrifugal pump 58 circulates 'brine thru a pipe 58 into the cooler 25 thru the coils 58 and leading therefrom thru the pipe 59 upwardly to the unit 44, the circulation flowing in the line of the arconvenient height,lI prefer to mount the same on a stand or platform 88, mounted on studs or legs 81-81 and suitably braced. The unit 44 may be of any desired size, capacity, and area but, as herein, shown for illustrative purposes, is a rectangular casing having the central open recess 18 to receive the freezing frame 15 to contain all articles to be treated and being. formed with an' opening 1| and a gate or door 12, all suitably covered by insulating material 13, and adapted to receive between the inner walls and the outer walls the circulating brine or equivalent liquid or gaseous substance in chamber 11. Thus I have provided in simple form a box-like unit or receptacle with an upper and.lower chamber, as well as side portions. '.to receive in the central section the freezing frame containing the articles to be treated.

'I'he unit comprises essentially two or more sections, see Figs. 4 and 5, with manifolds 18 and 19 across each end, and an inlet pipe 88 in communication with the pipe 59 from the cooler, and an outlet-pipe 8| leadingfrom the unit 45 and upwardly, as shown at 82, Figs. 1 and 3, a suitable distance to provide the desired head or pressure toy deect a-fiexible plate wall, or partition 85 .which thencontacts with thetop of the freezing frame 15 and the contents therein. 75

A series of openings or recesses 83483, see Fig.

6, lead.from the manifold 18 into the chamber 11 'formed between the rigid top wall 84 of the upper chamber and the flexible plate 85 constituting the lower wall of the same and between which the brine will circulate. I

A similar construction for the lower portion of the unit is provided as shown in Figs; 4, 5, and 6, except that I have here shown bothl the upper plate or member 88 and the outer or bottom wall 81 as rigid.. leaving the chamber 11 therebetween thru which the circulating brine 88 will flow thru end manifolds 94, having an inlet thru .the pipe 98 alsoin communication with the inlet vconduit 59 and from thence to an outlet pipe 8| into the common outlet 82, as clearly shown in Figs. 3, 4, and 5.' Similar manifolds are used in both upper and lower chambers, and strengthening webs or lribs 92, and 93 are also supplied, if desired, to the upper and lower outer walls, respectively.

I so space the upper chamber and the lower chamber to form an appropriate opening 18`between the flexible plate 85`of the upper section and the rigid plate 88 in the lower section to receive the freezing frame 15 and contents with a normal clearance when they rest upon the bottom plate 88. e

In order to accomplish this desired result and to provide\suitable adjustment for different capacities in the same machine, if desired,lI supply spacing members |88 to contact the edges or ends of the chamber 18, uniting the upper and y lower members by bolts |8| passing thru suitable recesses in flanges |82 in the upper and |83 in the lower member, and with rubber washers |84, |85 to have the same pressure-tight.

I may also :pass the ends of the flexible plate 85 thru to register with-the flanges |82 so that the bolts |8I and additional bolts |8|' will likewise retain the edge portions of the plate 85 and prevent displacement of'the same when said `plate is distorted for contact with the'freezing frame 15 and its contents` during the operation and effecting the heat exchange during direct contact with the contents of thefreezing frame.

In order to secure increased eillciency and appropriate distortion of the plate 85 with coinparatively slight head ofthe brine during circulation asI afforded by the height of the pipe 82, I prefer to increase the area of the plate 85 lproportionately with the area of the freezing frame 15 and the contents therein. Thus a head The operation of the unit just described is extremely simple and eilicient; the construction is rigid and allows for considerable adjustment when installing by the depth of the spacing members |88. When the circulating system is at rest the door 12 may be opened; the frame 15 with its contents is placed within the unit or receptacle, sliding the same in on the oor 88 of the bottom portion of the unit -positioned by the lugs |28,

ahandle 18 on' the freezing frame being provided to facilitate applying and removing same. l The door 12 is then closed and, assuming that 'the system has been properly filled with brine to the level of the filler 42 and the ammonia compressor is in operative'condition, the valves are opened; the compressor. is started thru the application of power to the pulley 5 or otherwise,

and the pump 50 functionsto circulate the brine v 'I'he flow of brine from the pump upwardly thru.

the pipe 59 and into the upper and lower sections of the unit by the inlet pipes 8! and 90, respectively, and thence outwardly and again'upwardly thru the outlet pipes 8l and ill and common pipe 82 at once build up a suitable head or 'pressure on the flexible plate l5 to distort the same and cause contact therewith against the freezing frame 15 and contents, the circulation of the brine being maintained by overflowing and flowing downwardly into the 'reservoir M and pipe 52 to the pump B0. 1 t

A thermometer lili is provided and a pressure indicator |06 an'd, if desired,y a switch II'I to start the pump motor are all in convenient position for inspection and use adjacent the unit, as'shown inFig. 1. a A multipleunit can be lreadily operatedirom the same source of power as outlinedin Fig. .1, having a duplicate unit to the right-of that shown in Fig. l, expanding the inletpipes Il# and Il! into the adjacent duplex unit and operating the same simultaneously with`the construction just described, and as shown-'in Fig. l.

If desired, a further duplex or' plurality of heat'- exchange units can be assembled as shown in Fig. 7, wherein two'freezing frames l5-'I5 are posivtioned horizontally over each other, with the upper unit having the flexible plate Il and associated portions as previously described, 'and with the intermediate unit having rigid upper and lower walls I I 0 and I I2 respectively, and the lower unit with a flexible bottom plate IIS and rigid outerwall H6, with suitable inlets III -for the intermediate unit and H4 for the lowerone, and appropriate outlets corresponding to Il and Si of the single unit.

In this form when the unit is in operation and the brinecirculating, the ilegible plate il will be deflected downwardly' in contact with the freezing frame 15, and the lower flexible plate III will be distorted upwardly, raising or lifting the Afreezing frame 15 for contact with the lower wall H2 of theintermediatesection, as will be appreciated.

I find thatv under average conditions one to one and one-half hours will eilectually produce'` suilicient heat exchange to freeze the contents of the freezing frame 15 to the desired rigidity with suitable brine and an ammonia cooler of appropriate capacity and standard form in a system substantially as outlined.` 1 v I have eliminated all movins Prts except the pump, and from the refrigerating unit have eliminated entirely all moving mechanism, thus preventing wea adjustments, replacements of parts and reducing maintenance and operation to a minimum.

I claim:

1. In apparatus for -effecting the process of Vtransfer of heat between said apparatus andjarticles contained therein to be treated, means providing for a circulating medium thru said apparatus, and hydrostaticaliy actuated means producing positive contact between said-articles and an adiacentjwallof the apparatus during. said heat transfer.

2. In apparatus for effecting the of transfer of vheat between said apparatus and articles to be treated, comprising initially a space within said apparatus permitting the application of and removal therefrom of articles to be treated with sufficient clearance for such purpose, a distortable wall in said apparatus adjacent said space, and means to distort hydrostatically said wall and eliminate said clearance to effect a positive contact between the apparatus yand said articles.v

3. In apparatus for eecting the process of `transfer of heat between said apparatus and articles to be cooled, comprising a recess within ,said apparatus permitting the application of and removal therefrom of articles to be treated with sumcient clearance for such purpose, refrigerant space having a distortable wall in said apparatus adjacent said recess, mechanism producing the flow of a circulating medium over said distortable wall, and hydrostatic pressure means for increasing the refrigerant space to distortvthe wall and eliminatev said clearance during the heat transfer operation. n Y

4. Apparatus for eecting heat transfer from va circulating medium to articles to be cooled. comprising apparatushaving spaced members cooperating with the said articles to permit insertion and removal of said articles with suitable clearance, and providing for contact between the thru. said member and distorting the outward wall adjacent said articles by increasing the reirigerant space for said medium and increasing the pressure on said distortable wall.

6. 'Apparatusfor effecting heat transfer Ve ploying a uid'circulating medium, which consists in providing hollow members thru which said medium may circulate, means to receive and hold articles to be treated adjacent a wall of a hollow member, and hydrostatic means for effecting an increase in pressure of said medium to distort one ofsaid walls andthereby effect a contact between said wall and said articles dur'- ing the heat transfer cperatipn.

'7. Apparatus for effecting heat transfer employing a fluid circulating medium, which consists in providing hollow members thru which said medium may circulate, meansto receive and hold articles to be treated adjacent a wall of a hollow member, and hydrostatic means for effecting an increase in pressure of said medium to distort one of said members to eiiectl a contact between said wall and said articles during the heat transfer operation.

8. Apparatus for effecting heat transfer comprising cooperating spaced hollow members, a container for articles to be treated proportionately formed to be positioned between said members with initial clearance when applying the same. one of said members being a flexible member adjacent '4 the articles positioned within theapparatus, and hydrostatic means operative to eliminate said clearance by the action of said ilegible l lmember during the heat transfer processi4 

